From ab4439ab5389a650fb6e02e0dd96984041df153b Mon Sep 17 00:00:00 2001
From: "kyle.cao" <kyle.cao@vesoft.com>
Date: Mon, 15 Nov 2021 15:39:45 +0800
Subject: [PATCH] fix index existence check

fix ut
---
 src/meta/processors/BaseProcessor-inl.h | 19 ++++-------
 src/meta/test/IndexProcessorTest.cpp    | 28 ----------------
 tests/tck/features/index/Index.feature  | 43 +++++++++++++++++++++++++
 3 files changed, 50 insertions(+), 40 deletions(-)

diff --git a/src/meta/processors/BaseProcessor-inl.h b/src/meta/processors/BaseProcessor-inl.h
index b46862753c3..fef1b77c7c4 100644
--- a/src/meta/processors/BaseProcessor-inl.h
+++ b/src/meta/processors/BaseProcessor-inl.h
@@ -548,22 +548,17 @@ nebula::cpp2::ErrorCode BaseProcessor<RESP>::ftIndexCheck(
 template <typename RESP>
 bool BaseProcessor<RESP>::checkIndexExist(const std::vector<cpp2::IndexFieldDef>& fields,
                                           const cpp2::IndexItem& item) {
-  if (fields.size() == 0) {
-    LOG(ERROR) << "Index " << item.get_index_name() << " has existed";
-    return true;
+  auto itemFields = item.get_fields();
+  if (fields.size() != itemFields.size()) {
+    return false;
   }
-
   for (size_t i = 0; i < fields.size(); i++) {
-    if (fields[i].get_name() != item.get_fields()[i].get_name()) {
-      break;
-    }
-
-    if (i == fields.size() - 1) {
-      LOG(ERROR) << "Index " << item.get_index_name() << " has existed";
-      return true;
+    if (fields[i].get_name() != itemFields[i].get_name()) {
+      return false;
     }
   }
-  return false;
+  LOG(ERROR) << "Index " << item.get_index_name() << " has existed";
+  return true;
 }
 
 template <typename RESP>
diff --git a/src/meta/test/IndexProcessorTest.cpp b/src/meta/test/IndexProcessorTest.cpp
index 14aafd24ad9..57a4c5627e9 100644
--- a/src/meta/test/IndexProcessorTest.cpp
+++ b/src/meta/test/IndexProcessorTest.cpp
@@ -214,20 +214,6 @@ TEST(IndexProcessorTest, TagIndexTest) {
     auto resp = std::move(f).get();
     ASSERT_EQ(nebula::cpp2::ErrorCode::SUCCEEDED, resp.get_code());
   }
-  {
-    // Allow to create tag index on no fields
-    cpp2::CreateTagIndexReq req;
-    req.set_space_id(1);
-    req.set_tag_name("tag_0");
-    std::vector<cpp2::IndexFieldDef> fields{};
-    req.set_fields(std::move(fields));
-    req.set_index_name("no_field_index");
-    auto* processor = CreateTagIndexProcessor::instance(kv.get());
-    auto f = processor->getFuture();
-    processor->process(req);
-    auto resp = std::move(f).get();
-    ASSERT_NE(nebula::cpp2::ErrorCode::SUCCEEDED, resp.get_code());
-  }
   {
     cpp2::CreateTagIndexReq req;
     req.set_space_id(1);
@@ -591,20 +577,6 @@ TEST(IndexProcessorTest, EdgeIndexTest) {
     auto resp = std::move(f).get();
     ASSERT_EQ(nebula::cpp2::ErrorCode::SUCCEEDED, resp.get_code());
   }
-  {
-    // Allow to create edge index on no fields
-    cpp2::CreateEdgeIndexReq req;
-    req.set_space_id(1);
-    req.set_edge_name("edge_0");
-    std::vector<cpp2::IndexFieldDef> fields{};
-    req.set_fields(std::move(fields));
-    req.set_index_name("no_field_index");
-    auto* processor = CreateEdgeIndexProcessor::instance(kv.get());
-    auto f = processor->getFuture();
-    processor->process(req);
-    auto resp = std::move(f).get();
-    ASSERT_NE(nebula::cpp2::ErrorCode::SUCCEEDED, resp.get_code());
-  }
   {
     cpp2::CreateEdgeIndexReq req;
     req.set_space_id(1);
diff --git a/tests/tck/features/index/Index.feature b/tests/tck/features/index/Index.feature
index 432dd06153c..12e7336994e 100644
--- a/tests/tck/features/index/Index.feature
+++ b/tests/tck/features/index/Index.feature
@@ -943,3 +943,46 @@ Feature: IndexTest_Vid_String
     Then the result should be, in any order:
       | Tag Index Name     | Create Tag Index                                               |
       | "player_age_index" | "CREATE TAG INDEX `player_age_index` ON `player` (\n `age`\n)" |
+
+  Scenario: IndexTest existence check
+    Given an empty graph
+    And create a space with following options:
+      | partition_num  | 9                |
+      | replica_factor | 1                |
+      | vid_type       | FIXED_STRING(30) |
+      | charset        | utf8             |
+      | collate        | utf8_bin         |
+    And having executed:
+      """
+      create tag recinfo(name string,tm bool,id int);
+      insert vertex recinfo(name,tm,id) values "r1":("czp",true,1);
+      create tag index recinfo_index on recinfo();
+      create tag index recinfo_name_index on recinfo(name(8));
+      create tag index recinfo_multi_index on recinfo(name(8),tm,id);
+      """
+    When executing query:
+      """
+      drop tag index recinfo_name_index
+      """
+    Then the execution should be successful
+    When executing query:
+      """
+      create tag index recinfo_name_index on recinfo(name(8));
+      """
+    Then the execution should be successful
+    When executing query:
+      """
+      create tag index recinfo_index on recinfo();
+      """
+    Then a ExecutionError should be raised at runtime: Existed!
+    When executing query:
+      """
+      drop tag index recinfo_index
+      """
+    Then the execution should be successful
+    When executing query:
+      """
+      create tag index recinfo_index on recinfo();
+      """
+    Then the execution should be successful
+    Then drop the used space